Diaphragm assemblies for use with fluid control devices
AssigneeFisher Controls International LLC
InventorJames Robert Mason
Life of this patent
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Abstract
Diaphragm assemblies for use with fluid control devices are described. An example diaphragm assembly includes a body defining a plurality of chambers to be fluidly coupled to an outlet pressure of a fluid control device. Each of the chambers is spaced along a stem at least partially disposed in the chambers, and the stem is to move to control a flow of fluid through the fluid control device. Additionally, the example diaphragm assembly includes a first plurality of diaphragms, each of which is disposed in a corresponding one of the chambers, and each of which is coupled to the stem to move the stem in response to the outlet pressure of the fluid control device.
Claims22
A diaphragm assembly for use with a fluid control device, comprising:
- a body defining a plurality of chambers to be fluidly coupled to an outlet pressure of a fluid control device, wherein each of the chambers is spaced along a stem at least partially disposed in the chambers, and wherein the stem is to move to control a flow of fluid through the fluid control device;
- and
- a first plurality of diaphragms, each of which is disposed in a corresponding one of the chambers, and each of which is coupled to the stem to move the stem in response to the outlet pressure of the fluid control device.
A pressure regulator, comprising:
- a body defining a plurality of chambers to be fluidly coupled to an outlet pressure of the pressure regulator, wherein each of the chambers is spaced along a stem at least partially disposed in the chambers, and wherein the stem is to move to control a flow of fluid through the pressure regulator;
- and
- a plurality of diaphragms, each of which is disposed in a corresponding one of the chambers, and each of which is coupled to the stem to move the stem in response to the outlet pressure of the pressure regulator.
A fluid control device, comprising:
- means for fluidly coupling a plurality of chambers, each of which at least partially surrounds a stem;
- and
- means for summing forces applied to the stem by a plurality of diaphragms disposed at different locations along the stem.
Dependencies are inferred from the claim text.